Orange Belgium has appointed the Group's Chief of Staff and Secretary of its Executive Committee as its new CEO.
Michaël Trabbia has been with the company since 2011 and replaces Jean-Marc Harion, who has just been appointed the CEO of Orange Egypt.
Orange said Trabbia has "strong strategic expertise and extensive experience in stakeholder relations". It also cited his background in engineering and knowledge of the telco sector.
Gervais Pellissier, Deputy Chief Executive Officer in charge of European Operations (excluding France), said: “We are delighted to have Michaël join the other European CEOs on our management team. He will bring all of his skills and experience to bear on Orange Belgium’s operations.
"I am convinced that he will pursue the path so successfully laid by Jean-Marc Harion, who has just been appointed CEO of Orange Egypt, and whom I would again like to thank for his contribution to the development of Orange Belgium."
Trabbia began his career at French regulator Arcep in 2001, where he was in charge of the attribution and regulation of mobile licences.
He has also held roles in the French government and media company TDF before joining Orange.
Meanwhile, Orange had completed the takeover of Bharti Airtel's assets in Sierra Leone in partnership with its Senegal-based partner Sonatel.
First announced in January, along with the purchase of Airtel's Burkina Faso arm, Orange has now taken control of 1.3 million customers.
It brings the number of countries Orange is operating in across the Middle East and Africa to 21.
A statement said: "The investments planned in the coming years will enable customers in Sierra Leone to benefit from the support of the Sonatel group and take advantage of the Orange group’s expertise and momentum in terms of innovation and development of the digital ecosystem."